197544768 has 56 divisors (see below), whose sum is σ = 528108672. Its totient is φ = 65163264.

The previous prime is 197544751. The next prime is 197544799. The reversal of 197544768 is 867445791.

It is a self number, because there is not a number n which added to its sum of digits gives 197544768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13321 + ... + 23927.

It is an arithmetic number, because the mean of its divisors is an integer number (9430512).

Almost surely, 2^197544768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197544768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264054336).

197544768 is an abundant number, since it is smaller than the sum of its proper divisors (330563904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197544768 is a wasteful number, since it uses less digits than its factorization.

197544768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10719 (or 10709 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The square root of 197544768 is about 14055.0620062666. The cubic root of 197544768 is about 582.4006405218.

The spelling of 197544768 in words is "one hundred ninety-seven million, five hundred forty-four thousand, seven hundred sixty-eight".